What do folds on a strip of paper mean

A long thin rod of mass M and length L is situated along the y axis with one end at the origin. A small spherical mass m1 is pla

Yuri [45]

Answer:

$= - 5.65\times 10^{-2} J$

Explanation:

Given data:

L =2.00 *10^4 m

d = 18*10^4 m

M = 18 *10^6 kg

m_1 = 8*10^6 kg

Gravitational energy is given as

$U =- G \frac{m_1 m_2}{r}$

mass per unit length is given as

$\sigma = \frac{M}{L} = \frac{18 \times 10^6}{2\times 10^4 m} = 900 kg/m$

calculating potential energy

$dU ==-G\int_{16\times 10^4}^{18\times 10^4} \frac{m_1 *dm}{r}$

$=-G\int_{16\times 10^4}^{18\times 10^4} \frac{m_1 *\sigma dr}{r}$

$=-G*m_1*\sigma\int_{16\times 10^4}^{18\times 10^4} \frac{dr}{r}$

$=-G*m_1*\sigma \left | ln r \right |_{16\times 10^4}^{18\times 10^4}$

$=-G*m_1*\sigma ln(1.125)$

$=-6.673 \times 10^{-11}*8*10^6*900*ln(1.125)$

$= - 5.65\times 10^{-2} J$

5 0

2 years ago

What is the biggest star in our solar system?

WARRIOR [948]

The Biggest star in our universe is the sun. Although the largest in the galaxy is the <span>VY Canis Majoris which is about 3,900 to 5000 light years away from us.</span>

5 0

3 years ago

Read 2 more answers

Which planets are composed more of gas than liquids and solids?

djyliett [7]

Answer:

Jovian planets

Explanation:

The gas giants, or jovian or extra-terrestrial planets are predominantly made up of gases than liquids and solids.

They are located beyond the fringes of the Asteroid belts which is the zone between the inner and outer planets.

The outer planets are Jupiter, Saturn, Uranus and Neptune. These planets are made up of gases predominantly hydrogen and helium.

The inner planets called terrestrial planets are solids balls of rocks. These planets are Mercury, Venus, Earth and Mars.

5 0

3 years ago

Light of a certain color has a wavelength of 4.8 x 10-7m. Determine the frequency and color of the light wave.

cluponka [151]

The frequency is $6.3\cdot 10^{14}$ and it is blue light

Explanation:

The relationship between the speed, the frequency and the wavelength of an electromagnetic wave is given by:

$c=f \lambda$

where

$c=3.0\cdot 10^8 m/s$ is the speed of light

f is the frequency of the wave

$\lambda$ is its wavelength

In this problem, the wavelength of the wave is

$\lambda = 4.8\cdot 10^{-7} m$

Therefore, its frequency is:

$f=\frac{c}{\lambda}=\frac{3.0\cdot 10^8}{4.8\cdot 10^{-7}}=6.3\cdot 10^{14} Hz$

The wavelength of this wave is

$\lambda = 480 nm$

And by looking at the table of the wavelengths of the colors, we notice that this corresponds to the blue light, which has a range of wavelength of

[450 - 495] nm

Learn more about waves and electromagnetic waves here:

brainly.com/question/5354733

brainly.com/question/9077368

brainly.com/question/9184100

brainly.com/question/12450147

#LearnwithBrainly

3 0

3 years ago

Which of the following is NOT a vector quantity?

lora16 [44]

Answer:

D

Explanation:

Acceleration has both magnitude and direction. because velocity is vector quantity

average velocity is vector

linear momentum = mass× velocity

therefore it's also vector

force = mass× acceleration

acceleration is vector therefore force also vector

potential energy= mgh

energy in any form is scaler quantity therefore potential energy too is a scaler quantity.

5 0

2 years ago